/**
 * @author ML李嘉图
 * @version createtime: 2021-11-11
 * Blog: https://www.cnblogs.com/zwtblog/
 */

public class test {
    public static void main(String[] args) {
        StringBuilder stringBuilder = new StringBuilder();
        stringBuilder.append("z").append("w").append("t");
        System.out.println(stringBuilder);
    }
}
